S20 is the authoritative medical code for Superficial injury of thorax. This classification is used in medical billing and clinical recording to specify the clinical criteria for superficial injury of thorax (ICD-10-CM S20), ensuring healthcare documentation aligns with current federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Superficial injury of thorax is a non-billable ICD-10-CM category code S20. A more specific billable subcode must be selected for claims submission. Includes: injuries of breast; injuries of chest wall; injuries of interscapular area. Excludes2 (not included here): burns and corrosions T20-T32; effects of foreign body in bronchus T17.5; effects of foreign body in esophagus T18.1; effects of foreign body in lung T17.8; effects of foreign body in trachea T17.4; frostbite T33-T34; injuries of axilla; injuries of clavicle; injuries of scapular region; injuries of shoulder; insect bite or sting, venomous T63.4. 7th character: The appropriate 7th character is to be added to each code from category S20.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S20 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- injuries of breast
- injuries of chest wall
- injuries of interscapular area
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions T20-T32
- effects of foreign body in bronchus T17.5
- effects of foreign body in esophagus T18.1
- effects of foreign body in lung T17.8
- effects of foreign body in trachea T17.4
- frostbite T33-T34
- injuries of axilla
- injuries of clavicle
- injuries of scapular region
- injuries of shoulder
- insect bite or sting, venomous T63.4
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S20 be billed directly?
No. S20 (Superficial injury of thorax) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S20 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S20; A: initial encounter; D: subsequent encounter; S: sequela.
Can S20 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S20 and the following are not considered part of each other and may both be reported when both conditions are present: burns and corrosions (T20-T32); effects of foreign body in bronchus (T17.5); effects of foreign body in esophagus (T18.1); effects of foreign body in lung (T17.8).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S20 in its code family, with their registry titles.
- S20.0 — Contusion of breast
- S20.1 — Other and unspecified superficial injuries of breast
- S20.101 — Unspecified superficial injuries of breast, right breast
- S20.101A — Unspecified superficial injuries of breast, right breast, initial encounter
- S20.101D — Unspecified superficial injuries of breast, right breast, subsequent encounter
- S20.101S — Unspecified superficial injuries of breast, right breast, sequela
- S20.102 — Unspecified superficial injuries of breast, left breast
- S20.102A — Unspecified superficial injuries of breast, left breast, initial encounter
- S20.102D — Unspecified superficial injuries of breast, left breast, subsequent encounter
- S20.102S — Unspecified superficial injuries of breast, left breast, sequela
- S20.109 — Unspecified superficial injuries of breast, unspecified breast
- S20.109A — Unspecified superficial injuries of breast, unspecified breast, initial encounter
- S20.109D — Unspecified superficial injuries of breast, unspecified breast, subsequent encounter
- S20.109S — Unspecified superficial injuries of breast, unspecified breast, sequela
- S20.111 — Abrasion of breast, right breast
- S20.111A — Abrasion of breast, right breast, initial encounter
- S20.111D — Abrasion of breast, right breast, subsequent encounter
- S20.111S — Abrasion of breast, right breast, sequela
- S20.112 — Abrasion of breast, left breast
- S20.112A — Abrasion of breast, left breast, initial encounter
- S20.112D — Abrasion of breast, left breast, subsequent encounter
- S20.112S — Abrasion of breast, left breast, sequela
- S20.119 — Abrasion of breast, unspecified breast
- S20.119A — Abrasion of breast, unspecified breast, initial encounter
- S20.119D — Abrasion of breast, unspecified breast, subsequent encounter
- S20.119S — Abrasion of breast, unspecified breast, sequela
- S20.121 — Blister (nonthermal) of breast, right breast
- S20.121A — Blister (nonthermal) of breast, right breast, initial encounter
- S20.121D — Blister (nonthermal) of breast, right breast, subsequent encounter
- S20.121S — Blister (nonthermal) of breast, right breast, sequela
- S20.122 — Blister (nonthermal) of breast, left breast
- S20.122A — Blister (nonthermal) of breast, left breast, initial encounter
- S20.122D — Blister (nonthermal) of breast, left breast, subsequent encounter
- S20.122S — Blister (nonthermal) of breast, left breast, sequela
- S20.129 — Blister (nonthermal) of breast, unspecified breast
- S20.129A — Blister (nonthermal) of breast, unspecified breast, initial encounter
- S20.129D — Blister (nonthermal) of breast, unspecified breast, subsequent encounter
- S20.129S — Blister (nonthermal) of breast, unspecified breast, sequela
- S20.141 — External constriction of part of breast, right breast
- S20.141A — External constriction of part of breast, right breast, initial encounter
- S20.141D — External constriction of part of breast, right breast, subsequent encounter
- S20.141S — External constriction of part of breast, right breast, sequela
- S20.142 — External constriction of part of breast, left breast
- S20.142A — External constriction of part of breast, left breast, initial encounter
- S20.142D — External constriction of part of breast, left breast, subsequent encounter
- S20.142S — External constriction of part of breast, left breast, sequela
- S20.149 — External constriction of part of breast, unspecified breast
- S20.149A — External constriction of part of breast, unspecified breast, initial encounter
- S20.149D — External constriction of part of breast, unspecified breast, subsequent encounter
- S20.149S — External constriction of part of breast, unspecified breast, sequela
- S20.151 — Superficial foreign body of breast, right breast
- S20.151A — Superficial foreign body of breast, right breast, initial encounter
- S20.151D — Superficial foreign body of breast, right breast, subsequent encounter
- S20.151S — Superficial foreign body of breast, right breast, sequela
- S20.152 — Superficial foreign body of breast, left breast
- S20.152A — Superficial foreign body of breast, left breast, initial encounter
- S20.152D — Superficial foreign body of breast, left breast, subsequent encounter
- S20.152S — Superficial foreign body of breast, left breast, sequela
- S20.159 — Superficial foreign body of breast, unspecified breast
- S20.159A — Superficial foreign body of breast, unspecified breast, initial encounter
- S20.159D — Superficial foreign body of breast, unspecified breast, subsequent encounter
- S20.159S — Superficial foreign body of breast, unspecified breast, sequela
- S20.161 — Insect bite (nonvenomous) of breast, right breast
- S20.161A — Insect bite (nonvenomous) of breast, right breast, initial encounter
- S20.161D — Insect bite (nonvenomous) of breast, right breast, subsequent encounter
- S20.161S — Insect bite (nonvenomous) of breast, right breast, sequela
- S20.162 — Insect bite (nonvenomous) of breast, left breast
- S20.162A — Insect bite (nonvenomous) of breast, left breast, initial encounter
- S20.162D — Insect bite (nonvenomous) of breast, left breast, subsequent encounter
- S20.162S — Insect bite (nonvenomous) of breast, left breast, sequela
- S20.169 — Insect bite (nonvenomous) of breast, unspecified breast
- S20.169A — Insect bite (nonvenomous) of breast, unspecified breast, initial encounter
- S20.169D — Insect bite (nonvenomous) of breast, unspecified breast, subsequent encounter
- S20.169S — Insect bite (nonvenomous) of breast, unspecified breast, sequela
- S20.171 — Other superficial bite of breast, right breast
- S20.171A — Other superficial bite of breast, right breast, initial encounter
- S20.171D — Other superficial bite of breast, right breast, subsequent encounter
- S20.171S — Other superficial bite of breast, right breast, sequela
- S20.172 — Other superficial bite of breast, left breast
- S20.172A — Other superficial bite of breast, left breast, initial encounter
- S20.172D — Other superficial bite of breast, left breast, subsequent encounter